Interrupt Assignment; Interrupt Assignment Of Expansion Card Slots On The Bus Board - Siemens SIMATIC IPC647E Operating Instructions Manual

Hardware description
A.3 Interrupt assignment
A.3

Interrupt assignment

A.3.1

Interrupt assignment of expansion card slots on the bus board

Note
All system resources (hardware addresses, memory allocation, interrupt allocation, DMA
channels) are dynamically assigned by the firmware or the operating system based on the
hardware equipment, drivers, installed expansion cards and connected external devices.
Assignment is performed automatically and is independent of the resources required by the
connected devices and inserted components. Due to this configuration dependency, clear
statements can only be made by determining them in relation to the system in the final
configuration.
Resources may be viewed as follows under Windows:
1. Press the "Windows® key" and "R" simultaneously.
2. Enter "msinfo32" in the "Open" field.
3. Confirm your entry with "OK".
Applications demanding a high-performance interrupt require a high-speed hardware
interrupt reaction. In order to enable fast hardware response time, the PCI hardware interrupt
may only be allocated to one resource.
Variant 1
You can find information on the slots under "Technical specifications of the expansion card
slots (Page 162)".
Slot
Type
Host Device
Bus
APIC Interrupt
INT A
INT B
INT C
INT D
B18
A17
A26
186
Slot 1 Slot 4
PCI PCI
PCH PCH
Port 8 Port 8
Dev 13 Dev 14
Primary A
PIRQ D PIRQ A
PIRQ A PIRQ B
PIRQ B PIRQ C
PIRQ C PIRQ D
Req0 Req1
Gnt0 Gnt1
AD29 AD30
Slot 3 Slot 2
PCIe PCIe
PEG PEG
0:1:0 0:1:1
n.a. n.a.
PIRQ A PIRQ B
PIRQ B PIRQ C
PIRQ C PIRQ D
PIRQ D PIRQ A
n.a. n.a.
n.a. n.a.
n.a. n.a.
Operating Instructions, 09/2022, A5E52254141-AA
M.2
PCIe
PCH
Port 21
n.a.
PIRQ A
PIRQ B
PIRQ C
PIRQ D
n.a.
n.a.
n.a.
SIMATIC IPC647E